We got this trumpet coral March 21st. We dipped it in iodine when we first got it and started it in the bottom of the tank. The first picture (in the dark) was taken on March 26 - showing it's feeders. On March 28th we moved it to the middle of the tank (second pic shows it's location). When we moved it it we noticed some of the green flesh looking a bit flaky. I thought maybe I got some glue on it or otherwise irritated it during the move. I started noticing a bit of the white skeleton showing after a few days. So we checked how much flow it was getting and started looking closely at water parameters. The flow seems to be moderate to low moderate. You can see the Reefwave 25 in the full tank picture, and the Cristada torch at about the same level. The torch sways gently - not getting blasted. It feels like the Candy Cane is getting similar flow. The parameters seemed mostly ok except that we were approaching an ultra low nutrient situation. Phosphate was .009 and nitrate had been steadily decreasing in the previous weeks was at .88. So we began dosing Tropic Marin Plus NP. We have a RedSea E 170 Max with ReefLED 90. I have attached a pic of the lighting program. Last weekend the second stalk started showing more white. They have feeders out at night (after the first few days) and we target feed 2 or 3 times per week. Tank has very peaceful fish - nothing has bothered it - no crabs in the tank either. We do a 10% water change every week using Tropic Marin Syn-Biotic Salt. We test several times per week. Today our parameters are: Salinity 34/1.025, temp 78, Alkalinity 9.0, pH 8.0, Phosphate (ppm calculated) .052, Calcium 433, Magnesium 1290, Nitrate .01. I use Milwalkee digital for salinity, Aqua Forest for Magnesium, and Hanna Checkers for everything else. Today we noticed this thing on the left stalk. It is not in earlier pics. I can't imagine that it is new growth because of all of the recession - so maybe it is a pest that has been irritating the coral. Please help me figure out what it is and what I should do.
